Pipe insulator



FIG. 1 is a front elevational view of a first embodiment of a pipe insulator showing my design;

FIG. 2 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a bottom perspective view thereof; and,

FIG. 5 is a top plan view thereof.

The broken line showing is included for the purpose of illustrating environmental subject matter, and forms no part of the claimed design. 

CLAIM The ornamental design for a pipe insulator, as shown and described. 